The signal conversion adaptor that a kind of bluetooth receives and the FM signal is launched
Technical field
The utility model relates to the signal conversion adaptor that a kind of bluetooth receives and the FM signal is launched, relate in particular to a kind of need not be to traditional stereo set through any type of repacking, can be the data resource of storage mediums such as bluetooth, USB storage, SD card, TF card, convert the FM signal that a kind of FM FM receiver of traditional stereo set can receive to, perhaps insert the audio interface of traditional stereo set by audio frequency input connecting line, thus the signal conversion adaptor that can come out sound playing.
Background technology
Current, most stereo set on the market, all be only to be with some AM/FM broadcast receivers, traditional sound equipment of CD or DVD player, these equipment can only receive the FM signal of broadcasting station emission, or listen to/playing back music by buying the CD/DVD video disc, yet along with memory technology and networks development, more audio frequency and video resource is the bluetooth that is stored in mobile phone, USB storage, the SD card, the data resource of storage mediums such as TF card, the tradition sound equipment can not be used to these resources, and for the traditional sound equipment that has existed in a large number, if be replaced with new stereo set, be undoubtedly a kind of huge waste.
Summary of the invention
Can not play-over the problem of data resource in order to solve traditional sound equipment, the utility model provides the signal conversion adaptor that a kind of bluetooth receives and the FM signal is launched, this signal conversion adaptor can be converted to simulated audio signal to digital audio and video signals, and can be the back emission of simulated audio signal coding, allow broadcast receiver receive and to play, also can carry out wire transmission, simulated audio signal is transferred to high-grade stereo sets such as automobile audio or home theater, play.
The technical scheme that its technical problem that solves the utility model adopts is: the data file that is received Bluetooth of mobile phone or computer Bluetooth transmission by the bluetooth receiving circuit, be decoded into digital audio and video signals by audio decoding circuit again, perhaps by audio decoding circuit decoding SD storage card, the TF storage card, music file in the storage mediums such as USB storage, by D/A switch circuit and anti-side-tone circuit digital audio and video signals is converted to simulated audio signal clearly again, also can be directly MP3, the simulated audio signal that music players such as MP4 come out, after the analogue audio frequency amplifying circuit amplifies, encode by FM stereo fm circuit again, by FM micropower radiating circuit FM signal is launched then.Like this, the FM FM receiver in 1-2 rice scope can be received FM signal, plays back on loudspeaker by wireless power amplifier; Also available connecting line connects the audio input port of audio output port and high-grade stereo set such as automobile audio or home theater, plays; The source of sound of mobile communication can also be received FM lift-off technology converting system by bluetooth and realize hand-free communication.The user adjusts to the FM tranmitting frequency on any blank frequency of local civilian FM receiving wave range (88-108MHz) (promptly can not receive the frequency in local radio station) and binds in use.
The beneficial effects of the utility model are, can be on various sources of sound such as the Internet, DVD, CD, Mp3 down-load music, minimizing is to the dependence of various video discs, avoided the waste of resource, also reduced the electric power power consumption of various players, thereby reach the effect of environmental protection and energy saving, realized on the wireless common sound equipment of various band FM, playing the purpose of various media sources of sound
Description of drawings
Fig. 1 is a square principle figure of the present utility model; Wherein:
1, bluetooth receiving circuit 13, transmitting antenna
2, SD deck 14, audio output port
3, TF deck
4, USB input socket A, Bluetooth of mobile phone
5, audio decoding circuit B, computer bluetooth
6,3.5mm input socket C, SD storage card
7, USB audio frequency input socket D, TF storage card
8, D/A switch circuit E, USB storage
9, anti-side-tone circuit F, MP3, MP4 player
10, analogue audio frequency amplifying circuit G, embedded in mobile phone MP3, MP4 player
11, the stereo set of Fm stereo fm circuit H, band FM reception
12, Fm micropower radiating circuit I, audio input port
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in the figure, bluetooth receiving circuit (1) in the signal conversion adaptor that bluetooth receives and the FM signal is launched, receive the data file of Bluetooth of mobile phone (A) or computer bluetooth (B) emission, play digital audio and video signals through audio decoding circuit (5), be converted to simulated audio signal clearly through D/A switch circuit (8) and anti-side-tone circuit (9) again, simulated audio signal is encoded through FM stereo fm circuit (11) after amplifying through analogue audio frequency amplifying circuit (10) again, by FM micropower radiating circuit (12) and transmitting antenna (13) FM signal is launched then, after the stereo set (H) of band FM reception is received, on loudspeaker, play back by power amplifier; Perhaps through connecting line simulated audio signal is docked with the audio input port (I) of automobile audio or home theater, carries out wire transmission by audio output port (14).
SD storage card (C) is inserted the SD deck (2) of signal conversion adaptor, or TF storage card (D) is inserted the TF deck (3) of signal conversion adaptor, or USB storage (E) is inserted the USB input socket (4) of signal conversion adaptor, data file in SD storage card (C) or TF storage card (D) or the USB storage (E) is play digital audio and video signals through audio decoding circuit (5), be converted to simulated audio signal clearly through D/A switch circuit (8) and anti-side-tone circuit (9) again, simulated audio signal is encoded through FM stereo fm circuit (11) after amplifying through analogue audio frequency amplifying circuit (10) again, by FM micropower radiating circuit (12) and transmitting antenna (13) FM signal is launched then, after the stereo set (H) of band FM reception is received, on loudspeaker, play back by power amplifier; Perhaps through connecting line simulated audio signal is docked with the audio input port (I) of automobile audio or home theater, carries out wire transmission by audio output port (14).
Connect MP3, MP4 player (F) and 3.5mm input socket (6), or connection embedded in mobile phone MP3, MP4 player (G) and USB audio frequency input socket (7), the simulated audio signal of playing is encoded through FM stereo fm circuit (11) after analogue audio frequency amplifying circuit (10) amplifies again, by FM micropower radiating circuit (12) and transmitting antenna (13) FM signal is launched then, after the stereo set (H) of band FM reception is received, on loudspeaker, play back by power amplifier; Perhaps through connecting line simulated audio signal is docked with the audio input port (I) of automobile audio or home theater, carries out wire transmission by audio output port (14).
In sum, the utility model is a kind of signal conversion adaptor that comprises bluetooth receiving circuit and FM signal transmission circuit, this signal conversion adaptor can be converted to simulated audio signal to digital audio and video signals, be transferred to the audio input port of stereo set by connecting line, realize that music file plays; Also can allow broadcast receiver receive and to play by the three-dimensional FM circuit of FM the back emission of simulated audio signal coding.
The above is a preferred embodiment of the present utility model only, and being not limited to the utility model only has this a kind of execution mode, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.